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Earnings (Loss) Per Share (Notes)
 6 Months Ended
Jun. 30, 2026
Earnings Per Share [Abstract]  
Earnings Per Share [Text Block]
14. EARNINGS (LOSS) PER SHARE (EPS)

We present EPS using the two-class method. This method allocates undistributed earnings between common shares and non-vested share-based payment awards that entitle the holder to non-forfeitable dividend rights. Our participating securities are our non-vested restricted stock units.

The following table sets forth the computation of our basic and diluted EPS available to shareholders of common stock (excluding participating securities):
Three Months EndedSix Months Ended
June 30,June 30,
2026202520262025
(in millions, except per share data)
Numerator
Net income (loss) attributable to Dauch $1.0 $39.3 $(99.3)$46.4 
    Less: Net income attributable to participating securities(0.1)(1.6)— (1.9)
Net income (loss) attributable to common shareholders - Basic and Dilutive$0.9 $37.7 $(99.3)$44.5 
Denominators
Basic common shares outstanding -
   Weighted-average shares outstanding245.0 123.9 222.7 123.2 
        Less: Weighted-average participating securities(7.8)(5.3)(7.3)(5.0)
    Weighted-average common shares outstanding237.2 118.6 215.4 118.2 
Effect of dilutive securities -
   Dilutive stock-based compensation0.3 0.2 — 0.1 
Diluted shares outstanding -
   Adjusted weighted-average shares after assumed conversions237.5 118.8 215.4 118.3 
Basic EPS$— $0.32 $(0.46)$0.38 
Diluted EPS$— $0.32 $(0.46)$0.38 

Basic and diluted loss per share are the same for the six months ended June 30, 2026 because the effect of potentially dilutive stock-based compensation would have been antidilutive. Excluded potentially dilutive shares were 0.3 million for the six months ended June 30, 2026.
On February 3, 2026, in connection with the completion of the Business Combination, we issued approximately 117 million shares and increased our authorized shares from 150 million to 375 million shares.